Generate dance videos using ByteDance SeeDance with support for multiple model variants, multi-shot prompts, and motion presets.

Model

bytedance/seedance

Parameters

ParameterTypeRequiredDescription
promptstringYesText description of the dance
image_urlstringYesReference image URL (person must be visible)
modelstringNoseedance_pro or seedance_pro_fast (default: seedance_pro)
resolutionstringNo480p, 720p, or 1080p (default: 720p)
durationintegerNo5 or 10 seconds (default: 5)
promptsarrayNoMulti-shot prompts (up to 3) for scene changes
motion_idstringNoMotion preset ID
camerastringNofixed or dynamic
seedintegerNoSeed for reproducibility

Model Variants

ModelDescriptionSpeed
seedance_proHigher quality outputStandard
seedance_pro_fastFaster generation2x faster

Example - Basic

curl -X POST https://api.unifically.com/v1/tasks \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "bytedance/seedance",
    "input": {
      "prompt": "Make them dance",
      "image_url": "https://example.com/person.jpg",
      "model": "seedance_pro",
      "resolution": "720p",
      "duration": 5
    }
  }'

Example - Multi-Shot

curl -X POST https://api.unifically.com/v1/tasks \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "bytedance/seedance",
    "input": {
      "prompt": "Start dancing",
      "prompts": [
        "Start with slow movements",
        "Speed up with energetic moves",
        "Finish with a dramatic pose"
      ],
      "image_url": "https://example.com/person.jpg",
      "model": "seedance_pro",
      "resolution": "1080p",
      "duration": 10,
      "camera": "dynamic"
    }
  }'

Response

{
  "code": 200,
  "success": true,
  "data": {
    "task_id": "abc123def456",
    "status": "pending"
  }
}

Pricing

SeeDance Pro
DurationResolutionPrice
5s480p$0.08
5s720p$0.16
5s1080p$0.36
10s480p$0.16
10s720p$0.32
10s1080p$0.72
SeeDance Pro Fast
DurationResolutionPrice
5s480p$0.04
5s720p$0.08
5s1080p$0.18
10s480p$0.10
10s720p$0.18
10s1080p$0.36